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A magnifying glass magnifying the word "topic" on a yellow background
Speech to Text Technology

Extract Topics from Transcribed Speech with Node.js

Rev AI's Topic Extraction API identifies the main topics in a speech transcript. Learn how to get started with our guide.

Vikram Vaswani
|
June 15, 2022
A man looks a tablet while standing in a data center
Artificial Intelligence

Rev AI Expands Its Presence in the European Union

Rev AI has launched our very first European data processing center in Frankfurt, Germany, so customers can store and process data in the US or EU.

Ajita Mishra
|
June 6, 2022
Six images in a grid pattern of microphones
Rev Spotlight

Get Started with Rev AI using PHP

To help developers integrate our APIs into their applications, we offer SDKs for Node, Java and Python. Learn more about how to use Rev AI with PHP.

Vikram Vaswani
|
May 30, 2022
An illustration of a blue speech bubble with the word "hello" in several different languages
Rev Spotlight

Transcribe Audio with Automatic Language Identification using Node.js and Rev AI Webhooks

Learn how our AI webhooks and Node.js can help you transcribe audio with automatic language identification.

Vikram Vaswani
|
May 16, 2022

Open vs. Closed Captions: What's the Difference? Why Does It Matter?

Understand open captions vs. closed captions, how each supports accessibility, and which option works best for your video content.

March 4, 2026

How to Record Audio on an iPhone in Three Different Ways

Master iPhone audio recording with our complete guide. Learn to use Voice Memos, Rev's recorder app, and online tools—plus how to get your audio transcribed.

December 18, 2025

Transcript to Trial: Leveraging Deposition Technology

Discover how firms are saving 12 hours per week and per attorney by switching to deposition technology with this whitepaper from Rev. Click to download.

November 20, 2025

Building a Speech Recognition System vs. Buying or Using an API

Pros and cons of building your own speech recognition engine or system vs using a pre built service or API that converts speech to text

November 5, 2025
Amy Poehler Speaks at 2011 Harvard College Class Day

Amy Poehler Speaks at 2011 Harvard College Class Day

Amy Poehler Speaks at 2011 Harvard College Class Day. Read the transcript here.

January 1, 2026
Ellen DeGeneres Speaks at Tulane University's 2009 Commencement

Ellen DeGeneres Speaks at Tulane University's 2009 Commencement

Ellen DeGeneres speaks at Tulane University's 2009 commencement. Read the transcript here.

January 1, 2026
Conan O'Brien delivers 2011 Dartmouth Commencement Address

Conan O'Brien delivers 2011 Dartmouth Commencement Address

Conan O'Brien delivers the 2011 commencement address at Dartmouth College. Read the transcript here.

January 1, 2026
David Foster Wallace 2005 Kenyon Commencement Speech

David Foster Wallace 2005 Kenyon Commencement Speech

David Foster Wallace gives the 2005 Kenyon College commencement speech. Read the transcript here.

January 1, 2026
Oprah Winfrey 2013 Harvard Commencement Speech

Oprah Winfrey 2013 Harvard Commencement Speech

Oprah Winfrey gives the 2013 Harvard commencement speech. Read the transcript here.

January 1, 2026
Barack Obama Howard University Commencement 2016

Barack Obama Howard University Commencement 2016

Barack Obama gives the 2016 Howard University Commencement speech. Read the transcript here.

January 1, 2026

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